Merck Manual

Please confirm that you are a health care professional

honeypot link

Stress May Lead to Gray Hair in Dogs

12/30/16 By
Merck Veterinary Manual
A new study of dogs has shown that fear of loud noises and strangers is associated with premature graying of the muzzle, similar to findings of stress-related changes in hair color in people.

Read more here or review the scientific study here.

Read more about anxiety in dogs in the Merck Veterinary Manual.